Carpenter and Sons' Balance Sheet on January 1,2012,had Total Assets

Carpenter and Sons' balance sheet on January 1,2012,had total assets of $73,000,total liabilities of $20,000,paid-in capital of $30,000,and retained earnings of $23,000.During the month of January,Carpenter and Sons' recognized revenues of $73,000,cost of goods sold of $47,000,depreciation expense of $12,000,the payment of February and March's rent totaling $2,500,and salary expense of $8,000.The retained earnings balance at January 31,2012,will be

A) $29,000.
B) $27,750.
C) $31,000.
D) $41,000.
E) $26,500.